Remains found on a Texas ranch earlier this year have been officially declared to be those of missing atheist leader Madalyn Murray O'Hair and of other family members, her daughter-in-law said Thursday. Speaking from the Washington office of the Religious Freedom Coalition, Nancy Murray said that the FBI notified the family of its findings a few days ago. "They apparently found an artificial hip that had a serial number on it," said Murray, who is married to William Murray, son of Madalyn. "It was one that had been implanted in Mrs. O'Hair several years ago." Forensic experts have been studying the remains for months, according to a CNN report. Suspect David Waters is facing kidnapping and extortion charges in connection with the case.